1 ; Test the stackrestore builtin. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 declare i8 *@llvm.stacksave() 6 declare void @llvm.stackrestore(i8 *) 7 8 ; we should use a frame pointer and tear down the frame based on %r11 9 ; rather than %r15. 10 define void @f1(i32 %count1, i32 %count2) { 11 ; CHECK-LABEL: f1: 12 ; CHECK: stmg %r11, %r15, 88(%r15) 13 ; CHECK: aghi %r15, -160 14 ; CHECK: lgr %r11, %r15 15 ; CHECK: lgr %r15, %r{{[0-5]}} 16 ; CHECK: lmg %r11, %r15, 248(%r11) 17 ; CHECK: br %r14 18 %src = call i8 *@llvm.stacksave() 19 %array1 = alloca i8, i32 %count1 20 store volatile i8 0, i8 *%array1 21 call void @llvm.stackrestore(i8 *%src) 22 %array2 = alloca i8, i32 %count2 23 store volatile i8 0, i8 *%array2 24 ret void 25 } 26
